• WordNet 3.6
    • v rehash go back over "retrograde arguments"
    • v rehash present or use over, with no or few changes
    • n rehash old material that is slightly reworked and used again "merely a dull rehash of his first novel"
    • ***
Webster's Revised Unabridged Dictionary
    • n Rehash Something hashed over, or made up from old materials.
    • v. t Rehash To hash over again; to prepare or use again; as, to rehash old arguments.
    • ***
Century Dictionary and Cyclopedia
    • rehash To hash anew; work up, as old material, in a new form.
    • n rehash Something hashed afresh; something concocted from materials formerly used: as, a literary rehash.
    • ***
Chambers's Twentieth Century Dictionary
    • v.t Rehash rē-hash′ to hash over again
    • n Rehash something made up of materials formerly used
    • ***


In literature:

But some other papers that didn't care a cent for literature rehashed the mere fact.
"The Arrow of Gold" by Joseph Conrad
Every day they rehash the story and challenge a denial.
"The Vision Spendid" by William MacLeod Raine
Commitments hushed or rehashed.
"After the Rain" by Sam Vaknin
It is, of course, but a rehash of speculations which amuses half an hour.
"Strange True Stories of Louisiana" by George Washington Cable
The later works of Kabbalists are a rehash of the older works.
"Chapters on Jewish Literature" by Israel Abrahams
We all go to those who have thought and wrought before us, and hash and rehash their material.
"Barbara's Heritage" by Deristhe L. Hoyt
It is, of course, but a rehash of speculations which amuses a half hour.
"Famous Adventures And Prison Escapes of the Civil War" by Various
And now it is again rehashed against the Jews in Russian Poland.
"The New York Times Current History: the European War, February, 1915" by Various
The Report is actually a rehash of major provisions in the 1960 Democrat and Republican party platforms.
"The Invisible Government" by Dan Smoot
I find things hashed and rehashed over and over again.
"Northern Nut Growers Association Report of the Proceedings at the Twenty-Fifth Annual Meeting" by Northern Nut Growers Association

In news:

Much of the same fromRalph Friedgen on the ACC teleconference that was said on Saturday and again Sunday, so it's probably not worth a rehash of it all.
Picture books about death typically involve wrinkly grandmas or unfortunate pets, rehashed platitudes and sensitive toddlers smiling up to the stars.
There's a lot to be said for rehashing psychedelic graphic design.
Uninspired 'Amazing Spider-Man' less reboot than rehash.
Apparently science is bored with modern day mysteries and has decided rehash ones from years ago.
Heart rocks Pacific without rehashing.
Mitt Romney, had a familiar feel, that's because the candidates rehashed so many of the same arguments they'd made about domestic policy in the previous two sessions.
Powell Says Cheney's Forthcoming Book Just A 'Rehash' Of Events.
So many radio station emails are just a rehashing of current promotions.
You as consumers of news prefer that the information and analysis we provide be freshly observed and reported, not recycled and rehashed.
In her sitdown with NBC's Matt Lauer, the tabloid target sounded like a broken record as she rehashed her long-standing commitment to acting.
The rehash of the 'Titans'.
And rehashed ideas for TV shows.
Judge Says She Won't Issue 'Omnibus' Ruling In Apple-Samsung Patent Trial Rehash.
Most live concert releases consist of a standard rehashing of a group's greatest hits with an additional cover tune and an unreleased track thrown in to whet the appetites of devoted fans.

In science:

Yet I hesitate about publishing material which can onlybe [sic ] considered a rehash of mathematics which is well known ( to at least a dozen people ).
On the genesis of symbolic dynamics as we know it
We don’t mean to get sidetracked with this rehashed discussion of homology.
A Simple Introduction to Particle Physics Part II
Rather than rehash the lengthy calculation, we state the results and discuss some important characteristics.
Cavity Control of a Single-Electron Quantum Cyclotron:\\Measuring the Electron Magnetic Moment
We rehash here the evidence for universality in the behavior of the two main SBF magnitudes utilized for estimating galaxy distances.
Distances from Surface Brightness Fluctuations
Guo et al. gave a new proof by rehashing some of their proof of Theorem 1.2.
A refined Agler decomposition and geometric applications